Grinding Nanotubes (2 of 2) (IMAGE) Rice University Caption Rice University graduate student Mohamad Kabbani displays graphene nanoribbons produced by grinding functionalized carbon nanotubes. Credit Jeff Fitlow/Rice University Usage Restrictions For news reporting purposes only. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.